Forces due to fluctuations in the anisotropic phase-field model of solidification

被引：19
|
作者：
Pavlik, SG [1 ]
Sekerka, RF [1 ]
机构：
[1] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA
来源：
PHYSICA A | 1999年 / 268卷 / 3-4期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/S0378-4371(99)00061-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Stochastic forces due to thermodynamic fluctuations are derived for the anisotropic phase-field model of solidification, The stochastic forces turn out to be anisotropic. The derivation utilizes the general principles of irreversible thermodynamics. One of the forces is the divergence of the stochastic heat flux derived by Landau and Lifshitz (Statistical Physics, Pergamon Press, Oxford, 1958). The other force is the phase-field counterpart of the interface force introduced by Karma (Phys. Rev. E 48 (1993) 3441). (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：283 / 290
页数：8
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